Home / 38,538.30-57,733.20-20,725.32

Finding the Fourth Proportional to 38,538.30, 57,733.20 and 20,725.32

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Solution

The fourth proportional to 38,538.30, 57,733.20 and 20,725.32 is: 31,048.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,538.30 : 57,733.20 = 20,725.32 : x
  2. Step 2: Convert to fraction form
    38,538.30/57,733.20 = 20,725.32/x
  3. Step 3: Cross multiply
    38,538.30x = 57,733.20 × 20,725.32
  4. Step 4: Simplify right side
    38,538.30x = 1,196,539,044.62
  5. Step 5: Solve for x
    x = 1,196,539,044.62/38,538.30
  6. Step 6: Final answer
    x = 31,048.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.